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Re: serial port response time
Kevin Wooley wrote:
> This almost fixed things. Thanks Lars!
> Here's the situation now - I'm running two threads. One thread is listening
> for and responding to commands on COM1 at 57600 bps. The other thread is
> capturing streaming binary data at 115200 bps.
> It seems that when either thread is running on its, performance is fine, but
> when both are running together, things slow down enough to be a problem.
> any more ideas? Do I need a custom interrupt based driver (have any of you
> implemented one which I could try out)? I've tried the 3 different kernel
> options for the serial driver,and FAST_TIMER is the only one that seems to work
> even close.
> thanks again,
Try to set CONFIG_ETRAX_SERIAL_RX_TIMEOUT_TICKS set 0 (zero).